#3
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From: Thiva,Greece...
HiVoltage...
its an inflight power system...installs on the engines crank shaft and supplies power for the airborne batteries..4.8volt..pretty cool setup..like an alternator in a car..
its an inflight power system...installs on the engines crank shaft and supplies power for the airborne batteries..4.8volt..pretty cool setup..like an alternator in a car..
#7
Tower has it
www2.towerhobbies.com/cgi-bin/wti0001p.pgm?Q=1&I=LXFV20&P=7
It keeps you batt charged. It runs youre on bored radio off of it unless the engine quits then it transfers power to the batt.
it also can power accesorys like lights and stuff.
www2.towerhobbies.com/cgi-bin/wti0001p.pgm?Q=1&I=LXFV20&P=7
It keeps you batt charged. It runs youre on bored radio off of it unless the engine quits then it transfers power to the batt.
it also can power accesorys like lights and stuff.
#12
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From: Australia
i think it will be cheaper to charge batteries off the wall socket, it will be cheaper that way. Because the energy conversion from chemical to electrical via combustion is pretty low (about 20 %) compared to large coal fired station (fuel to electricity 35%), also, by charging battery on board, the engine will use more fuel to do the extra work, which require more refuelling.
food for thought
food for thought
#13
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From: utah
Along the same thought, the 20% is roughly accurate so take all the force being applied by your servos, multiply it by 5 and that's the amount of energy not going to your rotor disk.
joe
joe
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From: Canyon Country, CA
At 2.0 amps (just a guess on probably the high side) at six volts that's 12 Watts times 5 for the conversion efficiency and you're up to 60 Watts. Your heli engine is (OS 32) 1.2 HP which is almost 900 Watts at peak output, so you're losing about 6 to 7% of your top end output. The larger the engine, the lower the percentage loss. An OS 70SZH is almost 1900 Watts so you're down to 3%. I suppose it's supposed to be a safety thing. Your battery stays charged or if the battery dies, you still have power... as long as that propellery type thing stays spinning.



